Nice work. The 2x4,s are strong. My bus is built with toothpicks. When you mount the fridge put a sturdy wall in front of it so if God forbid you ever hit something it won't come get you or a loved one. These things weigh like a small Volkswagen and deserve respect when mounting them. I have considerable beef up to do in my bus. Plus if they do come loose you have the added treat of a propane leak.